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Part: PCA84C64
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Datasheet: Download PCA84C64 datasheet File size : 2210 kB
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INTEGRATED CIRCUITS
DATA SHEET
PCA84C646; PCA84C846 Microcontrollers for TV tuning control and OSD applications
Preliminary specification Supersedes data of June 1994 File under Integrated Circuits, IC14 1995 Jun 15
Philips Semiconductors
Preliminary specification
Microcontrollers for TV tuning control and OSD applications
CONTENTS 1 1.1 1.2 2 3 4 5 5.1 5.2 6 6.1 6.2 7 7.1 7.2 8 9 9.1 9.2 9.3 9.4 10 10.1 10.2 10.3 10.4 11 11.1 FEATURES PCF84CXXXA kernel VST and OSD derivative GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING INFORMATION Pinning Pin description RESET Reset trip level Reset status ANALOG CONTROL 6 and 7-bit PWM outputs (PWM00 to PWM07) VST control 14-bit PWM DAC AFC INPUT OSD (ON SCREEN DISPLAY) FUNCTION Features Horizontal display position control Vertical display position control Clock generator DISPLAY RAM ORGANIZATION Description of display RAM codes Loading character data into display RAM Writing character data to display RAM Default value of the display character CHARACTER ROM Character ROM organization 12 12.1 12.2 12.3 12.4 12.5 12.6 12.7 13 14 14.1 14.2 15 16 17 18 19 20 21 22 23 24 25 26 27 28
PCA84C646; PCA84C846
OSD CONTROL REGISTERS Derivative Register 22 (CON1) Derivative Register 23 (CON2) Derivative Register 33 (CON3) Derivative Register 34 (CON4) Derivative Register 35 (VPOS) Derivative Register 36 (HPOS) Derivative Register 37 (BCC) COMBINATION OF TWO OR MORE FONT CELLS TO FORM A NEW FONT OSD CLOCK IN DIFFERENT TV STANDARDS Maximum number of characters per row Maximum number of rows per frame T3: 8-BIT COUNTER I2C-BUS MASTER SLAVE TRANSCEIVER DERIVATIVE REGISTERS INPUT/OUTPUT OPTION LISTS LIMITING VALUES DC CHARACTERISTICS AC CHARACTERISTICS AFC CHARACTERISTICS PACKAGE OUTLINE SOLDERING DEFINITIONS LIFE SUPPORT APPLICATIONS PURCHASE OF PHILIPS I2C COMPONENTS
1995 Jun 15
2
Philips Semiconductors
Preliminary specification
Microcontrollers for TV tuning control and OSD applications
1 1.1 FEATURES PCF84CXXXA kernel
PCA84C646; PCA84C846
· Programmable active level polarities of VSYNC/HSYNC · Display RAM: 64 × 10-bit · Display character fonts: 64 (62 customized + 2 special reserved codes) · Display starting position: 64 different positions by software control, both vertical and horizontal · Character size: 4 different character sizes, line-by-line basis, 1 dot = 1H/1V, 2H/2V, 3H/3V, 4H/4V. (H: OSD clock period, V: number of horizontal scan line height) · Character matrix: 12 × 18 with no spacing between characters · Foreground colours: 8, character-by-character basis · Background colours: 8, word-by-word basis. Available when background is either in North-west shadowing, Box shadowing and Frame shadowing mode · Background/shadowing modes: 4, No background, North-west shadowing, Box shadowing, Frame shadowing (raster blanking), frame basis · On-chip oscillator for On Screen Display (OSD) function · Character blinking rate: 1 : 1, 1 : 3, 3 : 1 (frequency: 1/ , 1/ , 1/ or 1/ 16 32 64 128 of fVSYNC, programmable), character basis · Display format: flexible display format by using Carriage Return (CR) code · Spacing between lines: 4 different choices, from 0, 4, 8 or 12 horizontal scan lines · Auto display character RAM address post increment when writing data · On-chip Power-on-reset · VSYNC leading edge can generate interrupt (programmable enable/disable by software) · 8-bit counter triggered by external pulse input.
· 8-bit CPU, ROM, RAM, I/O and derivative logic in one package · Over 80 instructions · All instructions of 1 or 2 cycles · Quasi-bidirectional standard I/O port lines (P0, P1) · Configuration of I/O lines individually selected by mask · External interrupt INT/T0 · 2 direct testable inputs T0, T1 · 8-bit timer/event counter · Single level vectored interrupt: external (INT), counter/timer, I2C-bus and VSYNC · Configuration of optimal on-chip oscillator transconductance by mask · On-chip oscillator clock frequency: 1 to 10 MHz · Power-on-reset and low-voltage detector · Low standby voltage and current in Idle and Stop modes · Single power supply: 4.5 to 5.5 V · Operating temperature: -20 to +70 °C. 1.2 VST and OSD derivative
· 6 kbytes (PCA84C646) or 8 kbytes (PCA84C846) system ROM, 192 bytes system RAM · A multi-master I2C-bus interface · One 14-bit PWM output for VST · Three AFC inputs with 4-bit DAC and comparator · Four 6-bit PWM and four 7-bit PWM outputs (DACs for analog controls) · Eight port lines with 10 mA LED drive (at 1.2 V) capability
1995 Jun 15
3
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